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Finding the Fourth Proportional to 657,277.61, 907,043.70 and 355,471.61

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Solution

The fourth proportional to 657,277.61, 907,043.70 and 355,471.61 is: 490,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,277.61 : 907,043.70 = 355,471.61 : x
  2. Step 2: Convert to fraction form
    657,277.61/907,043.70 = 355,471.61/x
  3. Step 3: Cross multiply
    657,277.61x = 907,043.70 × 355,471.61
  4. Step 4: Simplify right side
    657,277.61x = 322,428,284,379.36
  5. Step 5: Solve for x
    x = 322,428,284,379.36/657,277.61
  6. Step 6: Final answer
    x = 490,551.15

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